1/* SPDX-License-Identifier: GPL-2.0 */
  2#undef TRACE_SYSTEM
  3#define TRACE_SYSTEM iocost
  4
  5struct ioc;
  6struct ioc_now;
  7struct ioc_gq;
  8
  9#if !defined(_TRACE_BLK_IOCOST_H) || defined(TRACE_HEADER_MULTI_READ)
 10#define _TRACE_BLK_IOCOST_H
 11
 12#include <linux/tracepoint.h>
 13
 14TRACE_EVENT(iocost_iocg_activate,
 15
 16	TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
 17		u64 last_period, u64 cur_period, u64 vtime),
 18
 19	TP_ARGS(iocg, path, now, last_period, cur_period, vtime),
 20
 21	TP_STRUCT__entry (
 22		__string(devname, ioc_name(iocg->ioc))
 23		__string(cgroup, path)
 24		__field(u64, now)
 25		__field(u64, vnow)
 26		__field(u64, vrate)
 27		__field(u64, last_period)
 28		__field(u64, cur_period)
 29		__field(u64, last_vtime)
 30		__field(u64, vtime)
 31		__field(u32, weight)
 32		__field(u32, inuse)
 33		__field(u64, hweight_active)
 34		__field(u64, hweight_inuse)
 35	),
 36
 37	TP_fast_assign(
 38		__assign_str(devname, ioc_name(iocg->ioc));
 39		__assign_str(cgroup, path);
 40		__entry->now = now->now;
 41		__entry->vnow = now->vnow;
 42		__entry->vrate = now->vrate;
 43		__entry->last_period = last_period;
 44		__entry->cur_period = cur_period;
 45		__entry->last_vtime = iocg->last_vtime;
 46		__entry->vtime = vtime;
 47		__entry->weight = iocg->weight;
 48		__entry->inuse = iocg->inuse;
 49		__entry->hweight_active = iocg->hweight_active;
 50		__entry->hweight_inuse = iocg->hweight_inuse;
 51	),
 52
 53	TP_printk("[%s:%s] now=%llu:%llu vrate=%llu "
 54		  "period=%llu->%llu vtime=%llu->%llu "
 55		  "weight=%u/%u hweight=%llu/%llu",
 56		__get_str(devname), __get_str(cgroup),
 57		__entry->now, __entry->vnow, __entry->vrate,
 58		__entry->last_period, __entry->cur_period,
 59		__entry->last_vtime, __entry->vtime,
 60		__entry->inuse, __entry->weight,
 61		__entry->hweight_inuse, __entry->hweight_active
 62	)
 63);
 64
 65DECLARE_EVENT_CLASS(iocg_inuse_update,
 66
 67	TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
 68		u32 old_inuse, u32 new_inuse,
 69		u64 old_hw_inuse, u64 new_hw_inuse),
 70
 71	TP_ARGS(iocg, path, now, old_inuse, new_inuse,
 72		old_hw_inuse, new_hw_inuse),
 73
 74	TP_STRUCT__entry (
 75		__string(devname, ioc_name(iocg->ioc))
 76		__string(cgroup, path)
 77		__field(u64, now)
 78		__field(u32, old_inuse)
 79		__field(u32, new_inuse)
 80		__field(u64, old_hweight_inuse)
 81		__field(u64, new_hweight_inuse)
 82	),
 83
 84	TP_fast_assign(
 85		__assign_str(devname, ioc_name(iocg->ioc));
 86		__assign_str(cgroup, path);
 87		__entry->now = now->now;
 88		__entry->old_inuse = old_inuse;
 89		__entry->new_inuse = new_inuse;
 90		__entry->old_hweight_inuse = old_hw_inuse;
 91		__entry->new_hweight_inuse = new_hw_inuse;
 92	),
 93
 94	TP_printk("[%s:%s] now=%llu inuse=%u->%u hw_inuse=%llu->%llu",
 95		__get_str(devname), __get_str(cgroup), __entry->now,
 96		__entry->old_inuse, __entry->new_inuse,
 97		__entry->old_hweight_inuse, __entry->new_hweight_inuse
 98	)
 99);
100
101DEFINE_EVENT(iocg_inuse_update, iocost_inuse_takeback,
102
103	TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
104		u32 old_inuse, u32 new_inuse,
105		u64 old_hw_inuse, u64 new_hw_inuse),
106
107	TP_ARGS(iocg, path, now, old_inuse, new_inuse,
108		old_hw_inuse, new_hw_inuse)
109);
110
111DEFINE_EVENT(iocg_inuse_update, iocost_inuse_giveaway,
112
113	TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
114		u32 old_inuse, u32 new_inuse,
115		u64 old_hw_inuse, u64 new_hw_inuse),
116
117	TP_ARGS(iocg, path, now, old_inuse, new_inuse,
118		old_hw_inuse, new_hw_inuse)
119);
120
121DEFINE_EVENT(iocg_inuse_update, iocost_inuse_reset,
122
123	TP_PROTO(struct ioc_gq *iocg, const char *path, struct ioc_now *now,
124		u32 old_inuse, u32 new_inuse,
125		u64 old_hw_inuse, u64 new_hw_inuse),
126
127	TP_ARGS(iocg, path, now, old_inuse, new_inuse,
128		old_hw_inuse, new_hw_inuse)
129);
130
131TRACE_EVENT(iocost_ioc_vrate_adj,
132
133	TP_PROTO(struct ioc *ioc, u64 new_vrate, u32 (*missed_ppm)[2],
134		u32 rq_wait_pct, int nr_lagging, int nr_shortages,
135		int nr_surpluses),
136
137	TP_ARGS(ioc, new_vrate, missed_ppm, rq_wait_pct, nr_lagging, nr_shortages,
138		nr_surpluses),
139
140	TP_STRUCT__entry (
141		__string(devname, ioc_name(ioc))
142		__field(u64, old_vrate)
143		__field(u64, new_vrate)
144		__field(int, busy_level)
145		__field(u32, read_missed_ppm)
146		__field(u32, write_missed_ppm)
147		__field(u32, rq_wait_pct)
148		__field(int, nr_lagging)
149		__field(int, nr_shortages)
150		__field(int, nr_surpluses)
151	),
152
153	TP_fast_assign(
154		__assign_str(devname, ioc_name(ioc));
155		__entry->old_vrate = atomic64_read(&ioc->vtime_rate);;
156		__entry->new_vrate = new_vrate;
157		__entry->busy_level = ioc->busy_level;
158		__entry->read_missed_ppm = (*missed_ppm)[READ];
159		__entry->write_missed_ppm = (*missed_ppm)[WRITE];
160		__entry->rq_wait_pct = rq_wait_pct;
161		__entry->nr_lagging = nr_lagging;
162		__entry->nr_shortages = nr_shortages;
163		__entry->nr_surpluses = nr_surpluses;
164	),
165
166	TP_printk("[%s] vrate=%llu->%llu busy=%d missed_ppm=%u:%u rq_wait_pct=%u lagging=%d shortages=%d surpluses=%d",
167		__get_str(devname), __entry->old_vrate, __entry->new_vrate,
168		__entry->busy_level,
169		__entry->read_missed_ppm, __entry->write_missed_ppm,
170		__entry->rq_wait_pct, __entry->nr_lagging, __entry->nr_shortages,
171		__entry->nr_surpluses
172	)
173);
174
175#endif /* _TRACE_BLK_IOCOST_H */
176
177/* This part must be outside protection */
178#include <trace/define_trace.h>